Computer PDF thumbnails do not show what to do

method One:

1, can use 360 security guards to the System PDF view software uninstall clean, and choose to install Fu Xin PDF viewer;

2, after the installation is completed in large picture mode can see the thumbnail.

Method Two:

There may be users who are using Adobe Acrobat, but still cannot display the PDF thumbnail, so we can set it by reference to the following method.

1, open Adobe Acrobat, click Edit--preferences;

2, in the Preferences page, click on the left of the "General", and then on the right side of the "Enable PDF thumbnail in Windows Explorer", and finally click OK.